| Jack Leyfield | |
| Fullname: | John George Leyfield |
| Birth Date: | 5 August 1923 |
| Birth Place: | Handbridge, Cheshire, England[1] |
| Death Place: | Guildford, Surrey, England |
| Position: | Wing-Half |
| Years1: | 1946–1950 |
| Clubs1: | Wrexham |
| Caps1: | 34 |
| Goals1: | 1 |
| Years2: | 1950–1951 |
| Clubs2: | Southport |
| Caps2: | 26 |
| Goals2: | 0 |
| Clubs3: | Winsford United |
John George "Jack" Leyfield (5 August 1923 – 21 December 2014) was an English professional footballer who played as a wing-half. He made appearances in the English Football League with Wrexham and Southport. He also guested during the Second World War with Chester City.[1]